package com.lzg.dependencyInversion.youhua;

/**
 * @Author lizhigang Date: 2019/9/8 21:04
 * @description:
 */
public class Rongjin {

    private ICourse course;
    public void setCourse(ICourse course){
        this.course = course;
    }
    public void study(){
        course.study();
    }
}
